Tokyo police said Thursday they had arrested a 23-year-old man on suspicion of driving while drunk a vehicle modified to look like an unmarked police car.

Ren Nakamura, a resident of Toda, Saitama Prefecture, has admitted to the allegation of dangerous driving resulting in injury, according to the Metropolitan Police Department¡¯s traffic investigation division.

He is suspected of driving the fake police car and crashing it into a utility pole in Tokyo¡¯s Nerima Ward at around 1:20 a.m. on Dec. 21 last year while driving under the influence of alcohol. His girlfriend, 22, who was in the passenger¡¯s seat, suffered injuries that took three months to heal.